Home / 45,300.82-67,881.96-18,991.22

Finding the Fourth Proportional to 45,300.82, 67,881.96 and 18,991.22

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Solution

The fourth proportional to 45,300.82, 67,881.96 and 18,991.22 is: 28,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,300.82 : 67,881.96 = 18,991.22 : x
  2. Step 2: Convert to fraction form
    45,300.82/67,881.96 = 18,991.22/x
  3. Step 3: Cross multiply
    45,300.82x = 67,881.96 × 18,991.22
  4. Step 4: Simplify right side
    45,300.82x = 1,289,161,236.39
  5. Step 5: Solve for x
    x = 1,289,161,236.39/45,300.82
  6. Step 6: Final answer
    x = 28,457.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.